Hello everybody,

I need help for my Garmin GPSMAP 620 , have already unlock my gps with a BlueChart map Europe G2 vision VEU704L but i must change the device ( humidity problems ) but now I reput my sd card but nothing , I can read my map with homeport when i connect my device but on gps not possible.

Thank for your help ( sorry for my english I am french )
esmar